Comparator doesn't change Output when changing B-Input signal strength

When changing the B-Input signal strength of an comparator, it doesn't change its Output on normal mode.

For example, place a comparator with an A-Input Signal which is 4 blocks away from the power source, then connect a signal to the B-Input which is 3 blocks away from its power source, the comparator now shouldn't output a signal, but it does, it actually keeps it previous output.

Only by clicking two times on the comparator to change it in differentiation mode and back, updates the output.
This bug also doesn't appear if the comparator is in differentiation mode.